Building Setbacks & Zoning in Cobb County, GA (2026)
2 county-level rules, plus city-specific rules for 1 city in Cobb County, Georgia.
Verified from official government sources
Setback Rules
Unincorporated Cobb County fixes minimum yard setbacks by zoning district in the Chapter 134 bulk-regulations table, with each district's own code section applying the numbers. On a half-acre R-20 lot, the county's most common single-family district, front setbacks run 35 to 40 feet, side yards are 10 feet, rear yards are 35 feet, and the major side yard is 25 or 35 feet, all measured from the future right-of-way.
Cobb County Yard Setbacks Vary By Zoning District
Some RestrictionsCobb County Code § 134-197(4) (R-20 district), applied with the § 134-191 summary of bulk regulations table
(4) Lot size and setback requirements. ... Otherwise, lot size and setback requirements are as follows: a. Minimum lot size: 20,000 square feet. The board of zoning appeals shall not be authorized to recommend a variance for more than 25 percent of the minimum lot size. b. Minimum lot width at front setback line: 75 feet; cul-de-sac, 50 feet. c. Minimum public road frontage: 75 feet; cul-de-sac...
Structure Height Limits
In unincorporated Cobb County, principal residential structures are capped at 35 feet under the zoning code's single-family district rules. Height runs from the mean ground elevation at the front of the house to the mean level of the highest roof point. Accessory buildings top out separately at 15 or 35 feet depending on size. Marietta, Smyrna, Kennesaw, Acworth, Powder Springs and Austell set their own limits.
Cobb County Residential Height Limit: 35 Feet
Some RestrictionsCobb County Code of Ordinances § 134-197(7), (13)a-b.1
(7)Building and structure requirements. Maximum building height is 35 feet. ... (13)Accessory buildings, structures, uses and decks.a.Size and setback limitations: Any accessory building, structure, use and deck up to 144 total gross square feet must be located at least five feet off the property line and limited to 15 feet in height subject to the development conditions list below (except for ...
Building Setbacks & Zoning by City in Cobb County
1 cities in Cobb County have their own building setbacks & zoning rules. Each link goes to that city's dedicated page with code citations.
All Cobb County ordinances
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